CDL GENERAL KNOWLEDGE TEST (CA) - PRACTICE TEST
21.
When driving in heavy rain:
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take curves at higher speeds and brake while in curves.
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drive alongside other vehicles if possible.
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avoid driving through deep puddles or flowing water if possible.
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22.
Before loading or unloading any flammable liquids, you should:
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turn off the engine.
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turn on the headlights.
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start the engine.
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23.
Strong winds can make it difficult to stay in your lane, especially when:
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going into tunnels.
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coming out of tunnels.
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driving at speeds below 40 mph.
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24.
What should you do if you doubt you have safe space to pass under a low bridge?
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If no warnings are posted, assume there is enough clearance under the bridge and proceed slowly.
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Increase the weight of your vehicle to clearing under the bridge.
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Go slowly, and take another route if you are not sure you can make it.
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25.
Use your four-way emergency flashers:
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when parked at the side of the road.
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to warn drivers behind you that people are working on the road.
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All of the above.
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26.
The trailer hand valve should be used:
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only on slippery surfaces.
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only when applying the brakes hard.
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only to test the trailer brakes.
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27.
When driving on a slippery surface, you should do all of the following except:
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keep a shorter following distance.
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adjust braking to conditions.
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not pass slower vehicles unless necessary.
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28.
Radial and bias-ply tires:
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should be used together only when driving in packed snow.
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should not be used together.
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should be used together.
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29.
With an engine fire, you should:
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open the hood as soon as possible.
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not shoot foam from the vehicle’s underside.
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turn the engine off as soon as possible.
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30.
If you are driving a 30 foot vehicle at 35 mph, you should leave at least _______ between your vehicle and the vehicle in front of you.
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2 seconds
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3 seconds
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4 seconds
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